IC 74155 PDF

Description: The NTE is a monolithic TTL circuit featuring dual 1-line-to line demultiplexers with indi- vidual strobes and common binary-address inputs. DUAL 2-line TO 4-line Decoders/demultiplexers. Multiplexers, Demultiplexer Integrated Circuit (ics); IC USB SWITCH SP4T 25DSBGA Specifications. , Dual 2/4 Demultiplexer, 74 Standard TTL Series. Futurlec Part Number, Department, Integrated Circuits. Category, 74 Series.

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These control the duration of the high and low cycles of the clock. Changing the Delay In order to distinguish between the various input clock signals, I initially used delay instead of changing the ontime and offtime.

– Dual 2/4 Demultiplexer

Often the wires seem like they are connected, but they’re not. So, instructions to start a project are unfortunately not aided with screenshots.

Caution 4 This, not so important. Let the picture do the talking. A, B is same. Disconnect your system from the internet. I understand that it acts as an enable. So, I’ll just mention a few mistakes I made which I hope I won’t make again.


We’ve done this countless times in so many different ways. When using AND gates to make a decoder, the truth table is as follows: Note the last, C0 is the select input m or Input Carry.

I’ve classified them in the ways I’ve used them. Trust me, it helps. P-5 Decoders posted Nov 7415,2: My memory is a bit faulty but I do 7155 facing problems in the simulation if the above is not properly specified. Check that in the following way. When you place the various components Gates, ICs, etc onto the page. My memory is a bit faulty but I do recall facing problems in the simulation.

Move the gate or component around and if the wires move with it, It’s connected. And Full Screen Screenshots: Once you’ve got the truth table and the IC Number of the 4: Only Screenshots I could manage. The only thing that continues to confuse me is the truth table.

In order to distinguish between the various input clock signals, I initially used delay instead of changing the ontime and offtime.


Basically, inverting all the values. P-3 Tri State Buffer and Bus.

Dual 2 to 4 Decoder/Demultiplexer IC ( 74155 )

See it as a sign of doom. Without pictures, I really don’t see the point in explaining how to create a project. P-2 Shifter posted Nov 4,2: A, B are the Inputs. Make sure your connecting wires are Tri State Buffer Bus.

I’ve explained it here. Use the clock as M to control whether it adds or not.

74155 – 74155 Dual 2/4 Demultiplexer

Your 71455 will not simulate properly. This causes the truth table to be as given below. Hence, I don’t use this type anymore. Here, it’s G or G Dash.

I understand it from the IC. EA ‘ should be supplied 0. That said, I say it’s easier if I just mention the functions used: But something I’ve repeatedly faced.